Watch An Arrow Come Straight At You In Slow Motion

When an arrow is fired from a bow, as in the high speed video
above, the sudden impetus of force from the bowstring causes the
arrow to flex and vibrate as it is fired. The aerodynamic forces
generated by the fletches straighten the arrow’s flight, helping
it reach the intended target accurately.

See the Archery
Report for more information on the physics behind the bow and
arrow.